Tool for angling the crests of the bridges of spectacles or eyeglasses.



G J. TROPPMAN. TOOL FOR ANGLING THE GRESTS OF THE BRIDGES OF sP cTAcLEs 0E EYEGLASSES. APPLICATION FILED AUG. 31, 1914.

1,128,638. Patented Feb. 16, 1915.

2 SHEETSSHEET l.

M 7 I M $7M, w; Z 5

THE NORRIS PETERS co, PHOTOVLITHOH WASHING/ON. D c

C. J. TROPPMAN.

Patented Feb. 16, 1915.

2 SHEETSJSHEETZ.

UNITED STATES PATENT OFFOE.

CHARLES J. TROPPMAN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 F. A. HARDY & COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

TOOL FOR ANGLING THE CRESTS OF THE BRIDGES OF SPECTACLES 0R EYEGLASSES.

Specification of Letters Patent.

Patented Feb. 16, 1915.

Application filed August 31, 1914. Serial No. 859,316.

To all whom it may concern.-

Be it known that I, CHARLES J. TROPP- MAN, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Tools for Angling the Crests of the Bridges of Spectacles or Eyeglasses, of which the following is a specification.

My present invention relates to improvements in tools for angling the crests of bridges of spectacles and of such eye-glass mountings in which the bridge is adapted to rest upon the nose of the wearer, and has particular reference to the variety of tool in which the crest of the bridge is subject to the action of curved and inclined dies mounted upon the jaws of the pliers, or other means which will bring the dies into cooperative relation with suflicient force to accomplish the rolling or angling of the crests of the bridges. Without such dies it has hitherto been necessary to straighten the bridge out and then twist the central portion thereof to such an angle as the mechanic judges will be about right, and then reform the bridge and try it. The mechanics judgment is not always correct, and it is not unusual to repeat the straighteningout, angling, and reforming operations several times before the proper angle is secured. In using the dies above referred to, while it was possible to roll the crest of the bridge to different angles, the action of the dies tended to swing the entire bridge and also tended to flatten the bridge or spread the ends thereof farther apart, and these actions had to be prevented by the skill of the mechanic.

My present invention has relation to the provision of means for holding the bridge firmly in correct relation to the dies and also to prevent the flattening of the bridge or spreading of the ends thereof.

I attain the above objects by means of the structure illustrated in the accompanying drawings in which Figure 1 is a side view of a pair of pliers equipped with the necessary angling or rolling dies formed in accordance with. my invention, the same being shown in closed position. Fig. 2 is an enlarged detail of the jaws of the tool shown in Fig. 1 in open or extended position, Fig. 3 is an end view of the structure in the position shown in Fig. 2. Figs. 4: and 5 are central sections through the dies showing respectively the crest of the bridge in position for angling and after it has been rolled or angled. Figs. 6 and 7 are views similar to Figs. 4 and 5 but which has the bridge inserted in reverse relation so as to cause the rolling in an opposite direction. Fig. 8 is a fragmental side detail of the jaw for receiving the bridge, and Fig. 9 is a View facing the jaw shown in Fig. 8.

Similar reference characters refer to similar parts throughout the several views.

To the jaws of suitable pliers, 1, are secured the die members. The die member, 2, upon which the bridge is placed is a segment or section of a cone of sufiiciently small radius or are to enter the bridges of spectacles or eye-glasses. Upon the base of the die-member 2, is a lip 3 and at the intersection of the lip and cone, the cone is cut away slightly to form an arc-shaped seat, 4, for the edge of the bridge. At the sides of the die member 2, the lip 3, is provided with the ears 5, which extend parallel with the side wall of the seat and are sufliciently spaced therefrom to permit of the entry of the metal of thebridge between the wall of the seat and said ears.

Cooperating with the die member 2, is the encircling or inclosing die member, 6, the face of which is hollowed out so as to register with and be complementary to the surface of the die member 2, when the two die members are brought into cooperative relation.

It will now be seen that when the edge of the bridge has been brought into position into the seat, 4, of the die member, 2, as shown in Fig. l, the bringing together of the respective die members, 2 and 6 will cause the rolling or angling of the crest of the bridge as shown by a comparison of the respective dotted lines 00-00 and y-y drawn through the longest axis of the section of the crest of the bridge. It is obvious that the operation need not be carried as far as the tool will work, but may be stopped at any point thereby permitting the rolling of the crest to any angle within the range of the tool. It will also be seen that in the operation of angling the seat and cars will prevent the bodily movement and spreading of the bridge.

By a comparison of Figs. 6 and 7 with Figs; 4 and 5 it will be seen, that in order of the seat'for engaging the bridge and preventing the bodily movement thereof during the angling.

' 2. In a tool for angling the crests of spectacle and eye-glass bridges, inner and outer cooperating die-members, the inner member of which'has a conical surface and is provided with an arc-shaped channel or seat at the base thereof, and ears at each side which extend parallel with and beyond the side wall of said seat.

3. In a tool for angling the crests of spectacle and eye-glass bridges, innerand outer cooperating die-members, the inner member of which has a conical surface and is provided with an arc-shaped channel or seat at the base thereof, and means engaging the .bridgeto be angled for preventing the bodiljy movement thereof during the angling.

4. In a tool for angling the crests of spectacle and eye-glass bridges, inner and outer cooperating die-members, the inner member of which has a conical surface and is provided with an arc-shaped channel or seat at the base thereof, and means located adjacent to said seat for engaging the bridge to be angled and preventing the bodily movement thereof during the angling.

5. In a tool for angling the crests of spec- Oopies 01 this patent maybe obtained for tacle and eye glass bridges, inner and outer cooperating die-members, the inner member of which has a conical surface and is provided with an arc-shaped channel or seat at the base thereof, and a laterally extended ear at each end of said seat for engaging the bridge to be angled and preventing the bodily movement thereof during the angling. i

6. In a tool for angling the crests of spectacle and eye-glass bridges, inner and outer cooperating diesmembers movable toward and from each other, the inner member of which has a conical surface and is provided with an arc-shaped channel orseat at the base thereof conforming to substantially the contour of and adapted to receive the bridge to be angled, and lateral members adjacent to but spaced away from the ends of said seat for engaging the bridge to be angled and preventing the bodily movement thereof during the angling. I

7 In a tool for angling the crests of spectacle and eye-glass bridges, inner and outer cooperating die-members movable toward In witness whereof, I have hereunto set,

my hand this 27th day of Aug'ust,-l9l4, at Chicago, Cook county,-Illinois.

CHARLES J. TROPPMAN. Witnesses:

E. O. TROEGER, ,BENJ. T. RooDHoUsE.

five cents each, by addressing the commissioner of Patents,. Washington, I). Q. 

